MOBILE PHONE TAKEOVER PROTECTION SYSTEM AND METHOD

摘要

A method and a system are provided within a wireless network, for preventing fraudulent use of a Mobile Subscriber Integrated Services Digital Network Number (MSISDN) of a mobile phone terminal user. The IMSI and/or ICCID is associated with a respective Mobile Subscriber Integrated Services Digital Network Number (MSISDN) for the mobile phone terminal, and the associated IMSI and/or ICCID and MSISDN are stored. Upon receipt of a network request from a secure resource being accessed by the mobile phone user, the MSISDN is presented to the system. A Mobile Application Part (MAP) Send Routing Information (SRI) (or similar appropriate MAP query which can obtain the IMSI and/or ICCID) request to the wireless network is constructed for the extracted MSISDN, whereby the IMSI and/or ICCID currently associated with the MSISDN in the wireless network is obtained in reply to the SRI request. The obtained IMSI and/or ICCID is compared with the stored IMSI and/or ICCID for the extracted MSISDN and, if the obtained IMSI and/or ICCID matches the stored IMSI and/or ICCID for the extracted MSISDN, the mobile phone users network request is validated.